Home / 21,756.33-32,649.08-13,970.61

Finding the Fourth Proportional to 21,756.33, 32,649.08 and 13,970.61

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Solution

The fourth proportional to 21,756.33, 32,649.08 and 13,970.61 is: 20,965.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,756.33 : 32,649.08 = 13,970.61 : x
  2. Step 2: Convert to fraction form
    21,756.33/32,649.08 = 13,970.61/x
  3. Step 3: Cross multiply
    21,756.33x = 32,649.08 × 13,970.61
  4. Step 4: Simplify right side
    21,756.33x = 456,127,493.69
  5. Step 5: Solve for x
    x = 456,127,493.69/21,756.33
  6. Step 6: Final answer
    x = 20,965.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.